Experimental determination of the proton escape width in the giant dipole resonance ofY89

IAEA Photonuclear Data Library 2019

“…• The Photon Difference Method [13] in which the difference of two bremsstrahlung spectra near the slightly differing end-point energies is interpreted as an almost quasi-monoenergetic spectrum; a modified version uses the linear combination of three bremsstrahlung spectra [14] which improves the shape of the resulting spectrum;…”

Electromagnetic Dissociation Cross Sections Using Weisskopf-Ewing Theory

“…σ EMD (24) are the theoretical EMD cross sections using the energy independent branching ratio, equation (24). σ EMD (23) are the theoretical EMD cross sections using a WE branching ratio, equation (23). Note that all data from this table are graphically displayed in Figures 6-20.…”

“…The energy independent branching ratio offers reasonable estimates, while the WE branching ratio experiences problems. Complications arise in 89 Y because 75% of the photoproton cross section between 14 and 24 MeV decays directly [23][24][25]. The partial direct decay behavior in the proton channel will not be accounted for by the WE theory, which calculates decay rates for compound nucleus reactions.…”

Measurements of the 152Sm(γ,n) Cross Section with Laser-Compton Scattering γ Rays and the Photon Difference Method

“…[9][10][11][12][13][14][15][16]. On the other hand, in the data analysis to determine the (,n) cross sections, the so-called photon difference method, which had been used in the photonuclear experiments with bremsstrahlung source, 23) was first applied in the case of the LCS beam (Chap. III).…”